Figure 2From: Modelling the impact of intermittent preventive treatment for malaria on selection pressure for drug resistanceSensitivity analysis of main parameters. Each panel shows contours of the percent change in selection coefficient s, as a function of two parameters. The default parameter values (Tanzanian setting), and predicted change in s, are shown by ○ in each panel. Parts of panels b) and c) are blank because of the assumption that the drug history, and positive predictive value of treatment, would be higher in young children than adults.Back to article page